Sergeant Friman is developing an automatic submarine detector that piques the interest of both, Swedish and Russian spies.
This prequel to the other Uuno Turhapuro movies tells the story of Uuno's birth and childhood.
Gangsters try to steal Uuno Turhapuro's father-in-law's money by infiltrating into the family through Uuno, by pretending he has a long-lost son.
